Liquid-fuel burner.



, Patented Aug. I9, |902. R. HALLEY. Lmum FUEL BURNER.

(Application filed Nov. 5, 1901.)

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OIL.

No. 707,5I0.

(No Model.)

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llln'irisn @raresi 'ariENT OFFICE.

ROBERT I-IALLEY, OF CHICAGO, ILLINOIS, ASSIGNOR`OF ONE-FOURTH TO THE PLANO MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A

CORPORATION OF ILLINOIS.

LIQUID-FUEL BURNER.

SPECIFICATION forming part of Letters Patent No. 707,510, dated August 19, 1902.

Original application filed August 2, 1901, Serial No. '70,588-

no. 81,221.V

To all 107mm it may concern:

Be it known that I, ROBERT I-IALLEY, aciti-I zen of the United States, residing at Chicago, in the county of Cook and State of"Illinois,j have invented certain new andv useful Im` provenients in Liquid-Fuel Burners, of which l the following is a specification. i

My present application, which is adivisio of my application, Serial No. 70,583, filed August 2, 1901, for furnaces, .is concerned with a particular form of burner whichisadapted` for burning heavy hydrocarbon oils and other liquid fuels. In the aforesaid original ap` plicatiou I showed my improvements in burners as applied to a particular type of rotary furnaces, and while for convenience of illustration and description in the present applii cation I will show it as applied to the saine kind of a furnace it will be understood that its use is not limited to any one kind of afurnace, but that it can be used in any place where an oil-burner is required.

Referring` to the accompanying sheet of drawings, in which the same reference char-` acters are used to designate identical parts in all the figures, Figure 1 is a vertical sectionV through the furnace to which it is applied and through a portion of the burner, showing the rest of itin elevation. Fig. 2 is a central vertical section through the burner, on an enlarged scale; and Fig. 3 is a side elevation of the burner detached on the saine scale;

The furnace is provided with a stationarybase 5, in which is supported the standard 6, about the upper portion of which rotates the sleeve 7, secured to the bottom piece 8 of the furnace. The body of the furnace is'formed4 of the aforesaid bottoni piece 8 and the sidev pieces 9, together with the top pieces 10, the aforesaid parts being bolted together and lined with lire-brick 11, forming a furnacecavity 12, which is provided with a plurality of openings 13, in whichthe articles to be heated, such as the tire 14, (shown at the left-hand side of Fig. 1,) may be'placed. The burner is centrally located in the top of the furnace and throws a flame down into the cavity thereof, and the furnace is made rotatable to bring the different apertures 13 to Divided and this application filed November 5, 1901. Serial (No model.) r

the'point where the attendant is stationed. A suitable aperture 15, preferably square, is .formed in thetop of the furnace, and the `bottonrof the burner projects into this aperture. As the burner or the principal portion thereofiis stationary, I lead a pipe 16 zthereto for compressed air, opening into the i top thereof, and a pipe 17,supplying oil, opens `into the side, and a large pipe 18 for a blast `of airfroni the blower opens into the side of `the main portion of the burner. This main 4portion consists of a cylindrical shell 19, having at one side the cylindrical offset 20, with theV large aperture 21 therein. A collar'22 is secured thereto andhas the flange 23, upon which the end of the pipe 18 is placed, resting against the shoulder24. A slide-valve 25 is placed in the channel between the Gifset 20 and the collar 22,' so that the passage may be opened or closed, asmay be desired, to admit or shut off` the air-blast from the burner. The lower end'of the burner preferably rotates with the furnace and consists of a block 26, which has the preferably cir cular passage .27 therethrough and has its llower end 27 squared or given some similar angular shape to cooperate with the correspon`dingly-shaped aperture 15V in the top of theV furnace, through Vwhich it passes. The block 26 has the flange 29 formed thereon about midway its height, which. rests on the top of the furnace when the burner is in position. Above the flange 29 the'block is reerably circular in cross-section, so that it is free to rotate in the correspondingly-shaped recess 31, formed in the lower part of the block 19, which is preferably provided with a iange 32, which rests upon the flange 29. With this construction of the parts it willbe seen that the burner remains stationary and in the axis of the rotating furnace.

The burner proper consists of the tube 33, which has a screw-threaded portion 34,which is screwed into an aperture formed in the top of the block 19. The end of the pipe 16 is screwed into an, aperture in the upper end of the tube 33 and delivers compressed air into the channel 35, which extends through the length of the burner-tube. Near its upper end the burner-tube has a cylindrical enlargement 36, through which extends transversely the plug 37, which has an L-shaped channel 38 therein, one end opening to the outside and having the oil-pipe 17 screwed or otherwise secured therein, while the other end opens downwardly on the interior of the tube 33 and has the oil-pipe extension 39 screwed or otherwise secured therein, so that the oil from the tube 17 passes down and is discharged from the nozzle 40. For convenience of assembling the parts I preferably make the nozzle 41 of the burner, which surrounds the nozzle of the oil-pipe extension, removable, and, as seen in Fig. 2, its largest interior diameter is at its upper en-d, which fits over the reduced end 42 ot' the burnertube 33, where it is preferably secured in place by a set-screw 43. The lower end of the channel through the nozzle 41 is preferably reduced by a taper toward the bottom, so that at the end of the nozzle 41 there is only a very slight annular opening around the nozzle 40.

In the operation of the burner the oil is supplied by gravity through the oil-pipe eX- tension 39, and compressed air from the tube 16 passes down through the tube 33 and is discharged from the nozzle 4l and has a suction or atomizing eect on the oil to draw it from the nozzle 40 and to discharge it from the bottom of the burner, where it is ignited, the additional necessary air for combustion being supplied through the tube 18. To assist the compressed airin atomizing or break- .ing up the oil, I may employ the four or more pins 44, which are placed in the sides of the portion 28 of the block and have their sharp points extending `to the center of the channel 27 in position to receive the stream of oil and break it into particles if it is not already thoroughlyatomized by the action of the compressed air.

With the burner constructed as herein described and with the compressed air to draw the oil from the supply-tube I nd that a very strong flame can be maintained without the necessity of keeping the oil under pressure, as has beeny the practice with such burners heretofore, and when applied to the particular form of furnace herein shown an extremely strong flame is thrown into it and discharged through the openings against the articles that may be placed therein. Of course it will be understood that if it is not used with a rotary furnace the part 26 may be integral with the part 19.

While I have shown my-invention as embodied in the form which I at present consider best adapted to carry out vits purposes, it will be understood that it is capable of some modifications and that I do not desire to be limited in the interpretation of the following claim except as may be necessitated by the state of the prior art.

Vhat I claim as new, and desire to secure by Letters Patent of the United States, is-

In a device of the class described, the combination with the stationary burner consisting of the shell adapted to be connected to the air-passage and having the circular recess 31 therein, the burner-tube connected to the oil-supply, of the block 26 having a passage therethrough and the circular portion 30 fitting into the recess 3l and adapted t0 rotate therein. I

In testimony whereof I afix my signature in presence of two witnesses.

ROBERT I-IALLEY. Witnesses:

F. A. RICE, J. H. KoosER. 

